Apparatus for drying paper cups



Nov. 7, 1933. v, HEYwooD APPARATUS FOR DRYING PAPER CUPS 4 Sheets-Sheet l Filed March 24, 1931 58 65 l/nccnt EJYeywood.

E mmm@ NOV- 7, 1933- v. E. HEYwooD APPARATUS FOR DRYING PAPER CUPS Filed Marh 24, 1931 4 Sheets-Sheet 2 nvencov Vincent 6. Heyurcod.

Nov. 7, 1933. v. E. HEYwooD 1,934,540

APPARATUS FOR DRYINGPAPER CUPS Filed March 24, 1931 4 Sheets-Sheet 3 Snuenc or' Vincent Heywood..

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Aorneu N0V 7, 1933- v. E. HEYwooD APPARATUS FOR DRYING PAPER CUPS Filed March 24, 1931 4 Sheets-Sheet 4 lfncen 6. Heyuroo d. E m Z0. 7M

Morneg Patented Nov. 7, 1933 v*unirse STATES.

1,934,546 APPARATUS FOR DRYING PAPERI CUPS Vincent'E. Heywood, Worcester, Mass., assigner to United States Envelope Company, Springfield, Mass., a corporation of Maine Application Maren 24, 1931..'.seria1 No. 525,017v

8 Claims. (Cl. l`93-50)Q' v The present invention relates to the manufacture of round paper drinking cups of the type consisting of a tubular body portion, within which is assembled a separate bottom of circular disk form. In the making of such cups, the edges yof the blanks for the body portions are brought into over-lapping engagement Vby a curling or wrapping operation toenclose the bottom disks, with a seam extending longitudinally of each cup body, and the object of this invention is to provide means for thoroughly drying the adhesive extending along the cup body seams while 'the cups are in process of manufacturej In my copending application, Serial No.`265,-v

. 36S, led jointly with Ralph D. Hoaglund on March 28,1928, thereis shown and'describeda machine for making round cups of the above de. scribed'type, `and for purposes of illustration, theV apparatus of the present invention is shown as cooperating'with certain parts of the machine shown inl the above n mentioned application` Briefly stated, the cup machine referred to above consists of a rotatable turretl providing a number of separate stations at which various operations are successively performed on assembled body blanks and bottom disks, which operations result in the production of round cups yeach having longitudinal seam extending along the overlying edges of the body blank, with a bottom disk secured within the surrounding `tubular body. The turret on which the cups are thusv formed operates with a step-by-step movement and each step of the turret isfaccompanied by the discharge of a substantially completed cup f from the turret, either for the performance o additional operations thereon,'such as rinfispn'-V ping, or for transmission of the cup to a suitable insuring this result.Y As lwill hereinafter more fully appear, .one embodiment of the invention provides apparatus vcooperatingr with the cup orming turret in such a manner that each cup is removed from .the turret at one station and returned thereto at another station, with the interval between the transferals of each cup'ofsuchv long duration that the longitudinal seam of each cup is thoroughly dry. Sinceeach cup is returned to theturret after' drying, there is no interruptionyin the normal functioning of the turret, or any of the Amechanisms associated therewith, the net result being equivalent to `the provision of a forming turret having an almost infinite number of drying stations in whichH no `operations are Vperformed on the cups. @ther` of a cup forming-machine with the improved drying apparatus -of thepresent inventioncooperating therewith. I. f Fig. 2 is a fragmentary view showing, on an enlarged scale, a lportionof the parts shown in- Fig. 1, as viewed from the opposite-side.

FigB-is a view in sidegelevationof the partsshown in Fig. portions beingrshown in section to illustrate details of construction. I

Fig. e is a fragmentary view partly in section illustrating the ktransferal of a. cup from .the forming` turret to the-` drying apparatus.

Fig. 5 is a fragmentaryview lillustrating `a modiiiedf'form of drying-apparatus. v

Like reference characters referto like parts in the different figures. Y f ...Reierringiirstto Fig. 1, the cup lforming machine lwith which Vthe Vdrying apparatusicooperates generally comprises a main turret 1 providing around its periphery a plurality 'of equally spaced cup, forming mandrels 2, the whole turret 1 being adapted torotate with a step-by-step movement about the axis or" ay central shaftB. The mechanism for rotatably. driving theturret 1 is such thatfor each step :of the turret itis turned through an. angle .corresponding tothe angular displacement between adjacent mandrels 2, witha-*d'well betweeneach step. As fullyset forth and.` describedin the aforesaid eopending application, Serial No. 265,368, each dwell Vofthe turret lis accompaniedby the'performance of certain c'upiorming operations at diierent mandrels 2 which finally result inthe'production of a cup comprising-a tapered body portion 4 wrapped in surroundingrelation to a bottom disk 5 closing the smaller end of the body fi, assshown in section in FigrS. :As shown'v on the cups carried by the mandrels 2 `below the`V mandrel shown -in section inFigpB, each cup body provides a longitudinal seam 4a extending along theoverlapped edges of the bodyv 1i, and it isone purpose of the apparatus of the present invention to `autornatically remove a cup from one mandrel 2 of 'the mainfturret and returny it to anotherrnandrel after the lapse of an interval more than sufcient'for thorough drying oi the gum or paste along .the seam'V 4a.

However, before proceeding with a detailed consideration of the construction and operation of the drying apparatus, there will be briey described the means for handling a cup after its removal from the main turret 1 for the purpose of performing either an additional operation thereon, such as rim spinning, or for delivering it in nesting relation to a suitable container. As best shown in Figs. 2 and 3, the main turret 1 cooperates with a secondary turret 6 mounted on a shaft 7 parallel to the main turret shaft 3. This secondary turret 6 provides a number of spaced hollow seats, or receptacles 8 of such form as to receive the bodies 4 of cups small end first, and gearing 9 between the turrets 1 and 6 serves to drive the secondary turret 6 with a step-by-step movement adapted to axially aline a seat 8 with a mandrel 2 at each step. One of the seats 8 of the secondary turret 6 is shown in Fig. 3 as being in alinement with a mandrel 2 having a cup thereon, and as will hereinafter appear, the transferal of a dried cup, closed end rst, from a mandrel 2 to a seat 8 takes place in the dwell of both turrets 1 and 6 following each step. And as previously pointed out, the drying apparatus which comprises the present invention cooperates with the main turret 1 in such a manner that both the transferal of a cup from the main turret to the drying apparatus and the return of a cup from the drying apparatus to the main turret also takes place in the dwell of the turrets, as will now be described.

As best shown in Fig. 3, the frame 10 which carries the bearing for the secondary 'turret shaft 7 provides an upwardly extending portion 10a terminating in an elongated bearing 11 for a shaft 12. The shaft 12 projects at both ends beyond the bearing 11 with its outer end carrying a sprocket wheel 13 connected by a chain 14 to a sprocket wheel 15 mounted on a shaft 16 driven through a chain r17 and sprockets 17a and 17b'from the main drive shaft 18 ofthe cup machine indicated in Fig. 2. The other end of the shaft 12 carries a sprocket wheel 19 which, as best shown in Fig. 2, serves to drive the conveyor chain 2O ofthe drying apparatus. The conveyor chain 20 carries a large-number of spaced cup receiving rings 21,

each ring '21 being of such diameter as to freelyv receive a `cup body 4,v `closed end'rst, without permitting the larger open end of the cup to pass therethrough, as clearly shown in Fig. 4. The rings 21 have their centers spaced apart such a distance that when one ring 21 is in alinement with the mandrel 2 shown in section in Fig. 3, the ring next below will also be in alinement with the mandrel: shown as being empty in Fig. 3. This essential relation is shown in dotted lines in Fig. 2 and the ratio of the sprockets 17a and 17h through which the chain l4`is drivenvfrom the main shaft 18 is such that the turning ofthe main turret 1 through one step is accompanied byfslow movement of the chain 20 through a distance equalto the displacement between centers of adjacent rings 21. Therefore, each time the turret 1 dwells in its movement, the mandrel 2 shown in section in Fig. 3, as well as the mandrel below it, have their respectiveaxes Yalined with the centers of ltwoadjacent rings 21 long enough for the transfer of cups from the turret 1 to the chain 20 and from the chain20 back to the turret 1, as will be hereinafter described.

As best'shown in Fig. 1, the chain 20 extends upwardly from rone side of the'driving sprocket wheel 19 around a guide wheel 22 rotatably supported a considerable distance above the cup machine by suitable hanger 23. The chain 20 then extends horizontally to a second guide Wheel 24 rotatably supported by a hanger 25 from which it passes downwardly toward the turret l, as indicated by the arrows. For the purpose of guiding the chain 20 so that its rings 21 will be accurately positioned in register with mandrels 2 of the turret 1, a pair of guide rolls 26 and 27 are provided, which as best shown in Fig. 2, are supported by studsk 28 extending from the frame portion 11. Thus the chain 20 is constrained to follow the course shown in Fig. 2, with two of its rings 21 positioned in alinement with two of the turret mandrels 2 at each dwell of the turret 1. The rings 21 are incorporated in the chain 20 in such a manner that the chain can be readily assembled from standard sprocket chain parts, this construction'being illustrated in the broken away portion of the chain at the right of Fig. 2. As shown, each ring 21 is welded or otherwise formed integrally with a solid bar 29 provided with openings 30 at its ends for receiving suitable pins pivotally connecting the bar y29 to the side links 31. In other words, each bar 29 carry-V ing a cup ring 21 is similar in all other respects to the remaining bars 29a of the chain 20, so that the chain may be readily assembled and rings 21 removed and replaced, as desired.

Referring now to Fig. 3, it will be seen that each main turret mandrel 2 provides a longitudinal opening 32 in which is slidably received a plunger 33 carrying a circular head 34, having a diameter slightlyiless than the diameter of thev bottom disk 5 of a cup. The other end of the plunger 33 Vprojects rearwardly through the web 1a of the turret 1, and is surrounded by a spring 35 which normally tends to hold the head 34 in retracted position within the cup, in engagement with the end of the mandrel 2. In this retracted position, the head 34 is spaced somewhat from the bottom disk 5 and this is the position occupied by the parts when a mandrel 2 comes to rest with acup thereon in axial yalinement with a stationary ring 2l of theconveyor chain 20. As the mandrel 2 comes to rest, as shown in Fig. 3, a shoulder 36 on the rear end of the plunger 33, against which bears the spring 35, cornes into register with a 37 which extends beyond the bracket 38 is pivotally connected to a lever arm 39 mounted on a shaft 40 supported by a bracket 4l, best shown in Fig. 2. The other end of the shaft 40 carries a second lever arm 42, turnabl-e with the arm 39, to which is pivotally connected the upper end of a link 43. The lower end of the link 43 is connected to a lever arm 44 mounted on a rock shaft 45 by means of a pin 46 which also carries a roll 47. The roll 47 bears on the surface of a cam 48 mounted on a shaft 49, driven from the main shaft 18, only a portion of which is shown in Fig. 2.

Rotation of the cam shaft 49 causes the cam 48 to impart a longitudinal movement to the plunger 37 in the direction of the turret 1, and since this g1 plunger 37 is in engagement with the end of the mandrel plunger 33, the head 34 is moved in the direction of the cup bottom disk 5. The movement of .the plunger 37 is so controlled that the head 34 will engage the bottom disk 5 and cause in the plunger comes into register with an open- 1 be supplied with a-irunder pressure VAs indicated in dotted lines-irlFig. 4, the passage '51 of` plunger 37 is in alinemfentv with a passagei53 extending through the mandrel plunger 33, so that when the port registerswith the pressure pipe 52 a blast of air is delivered through' the head 34; This blast of air striking the solid bottom disk 5 of the already loosened cup causes the immediate transfer of the cup from themandrel 2 into the alined ring 21 and' is shown as having taken place in Fig.- '4.

VAs'previously pointed out, a dwell takes place in the movement of the main turret 1 after each step thereof, andthe Vcarn 48 -is so timed that the transferal of a cup from a mandrel 2 into a ring 21 takesfplace shortly after the turret comes to rest; Therefore, by the timethe turret 1'is turned through another step the chain 20 has already shifted the cup just transferred'away from the Yempty mandrelr and has -moved an empty ring 21 into' position with the mandrelA carryingthe next cup. At the time of the transfer of a cup into a ring 2l', seam 4al of vthe cup body 4 is still more or less moist, so that the rigid ring 21 holds this seam against any spreading as the ring 21 starts to traverse the Whole length of the chain. It is evident from a considerationV of Fig. 1 that the chain 20'presents an extremely large number of rings, as compared to the number of cup forming mandrels 2 on the turret 1, and since the chain 20 travels through only the space ofV one ring for, each mandrel step, the turret 1 will make `several revolutions While a given cup is passing around the chain; Consequently,` the cup will be thoroughly dried by the time it reaches the 1011 27 in register with an empty mandrel 2 of the turretl, asindicated in Fig. 3 below the mandrel shown in section, whereupon instrumentalities come into action to transfer a dried cup froma ring 2l onto the empty mandrel, simultaneously with the transfer of an undried cup from a mandrell to a ring, as previously described.

As best shown in Fig. y3, the frame portion 10a carries a finger 54 providing an inclined portion.

55 which is disposed inthe path of movement of a cup bottom fas the latter is vcarried intoalinement with the empty mandrel 2 by its ring 21. As indicated by thecup shown in V dotted lines, the inclined portion 55 is` so positioned that the rim of a cup bottom strikes it vvhile the cup is still fully inserted within a ring; therefore the xed inclined lportion, 55eXerts 'a wedging action `on the'cup Vas the latter is moved by the 'chain into register With the empty mandrel 2. This has the eiect vof, shifting the cup bodily, open end'rs't',

VWithin the ring as indicated in full lines lin Fig.

3, therebyy loosening the, larger portion of the cup from the grip of the ring slightly ahead "of a blast of air delivered against the bottom disk 5 by means of Aa nozzle 56 invalinement with Vthe axis of the` empty mandrel 2, thereby transferring the previously loosened cup from the ring 21 onto the empty mandrelivhere it tends to remain by f' reason of the Wedging action of the mandrel with is represented in Fig. 1 as comprising a pipe 58 supplied from the usual air pressure line provided in cup making establishments. This pipe 58 is f adapted to supply air under pressure to a suitable distributing manifold 60 into which lead both the pipe 52 and the pipe 57 from the nozzle 56. In order to insure that an air blast Will be delivered by the nozzle 56 at the moment a ring 21 moves a cup into register with an empty'turret mandrel 2, the manifold 60 provides a sliding valve member 61 providing a port 62 normally held out of register with a port 63 of the manifold, and the entrance to the pipe 57. One way of holding the port 63 closed consists of a cam 64 mounted on a continuously driven shaft 65 connected toY the drive shaft 18, the cam bearing on a roll 66 carried by the valve 61. The cam 64 provides a depression 67 and when the roll V66 is received therein, the valve 61 is moved against the pressure of a spring 68 to open the port 63, thereby admitting a blast of air under pressure to the nozzle 56. Since the remainder of the cam 64 is concentric about the aXis of the shaft 65, the blast of air at the nozzle 56 is shut oiT as soon as the cup hasV been transferred to the empty mandrel 2. Since the shaft 65 operates the valve 61- once for each step of the turret 1, it followsA that each time thel main turret 1 comes to rest with its empty mandrel 2 inralinement with the nozzle 56, and the travel of the chain 20 moves a loosened dried cup into register with the mandrel, the nozzle 56 will deliver a sudden strong blast of air which conveys the cup open end rst to the empty mandrel 2. Subsequent steps of the main turret 1 then carry the dried cup to another station, at which it may be discharged from the main turret in any suitable manner for the performance of additional operations thereon, such as rim spinning, or for delivery to a suitable re# ceptacle for completed cups.

As illustrative of the manner in which a dried cup can be removed from the main turret, there is shown Fig. 3 anv arrangement for loosening a dried cup from a mandrel 2 and transferring it to the secondary turret 6 by an air blast, in substantially the' same manner as described with reference to the means for transferring a cup frornthe turret 1 to the chain 20. This transfer means consists of a plunger 69 that is adapted to cooperate with the shoulder 36 of an alined mandrel plunger 33in the same manner as described vvith reference to the plunger 37. The plunger 69 is pivotally connected to an arm 70 on the same' shaft 45 which carries the arm 44; consequently, the plungers 37 and 69 operate in unison to first loosen a cup from a mandrel and then discharge it from the mandrel by means of an `air blast. AAsshovvn, the operation of the plunger 69`is adapted to cause the delivery of a dried cup to one of the seats 8 of the secondary turret 6, movement of which serves to clear the cup from the main turret, as indicated inv Fig. 2. When a dried cup has been thus cleared from the main turret 1 by movement of the secondary turret in step with the main turret, the cupv is heldin its seat. 8, either for the performance of a rim spinning operation, or for its delivery open end rst from the seat Sto a suitable receptacle vfor receiving nished cups in nesting relation;

n As indicated inFig. 3, the operations of rim spinning and crimping on a cup in a seat 6 ci the secondaryr turretmay be suitably formed by means of a rotatably driven rim spinner 71 and a rimxcrimping headV 72 adapted to cooperate with a crimping ring 73'surrounding each seat 8. The construction and functioning of the rim spinning and crimping instrumentalities are fully set forth in my aforesaid copending application, Serial No. 265,366 and need not be described in detail herein. It is sufficient for an understanding of the purpose of the present invention to state that the rim spinner 7l operates on the open rim of a cup received in the seat 8 just below the seat to which a dried cup is delivered from the main turret 1, and by reason of its combined rotative and axial movement, the spinner curls over the rim of the cup. Since the longitudinal seam of the cup has been thoroughly dried in traversing the drier chain, the rim spinning operation is effectively performed Without any tendency of the wall of the cup to crumple at the seam.

Since the secondary turret 6 is driven in step with the main turret l, the dried cupsdelivered to the secondary turret are successively operated upon by the rim spinner 71 during each dwell of the turrets, and the crimping head '72 cooperates with the crimping ring '73 of each seat when a rim spun cup reaches the secondary turret positiondiametrically opposite the transfer position. The cooperation between the crimping head '72 and the crimping ring '73 serves to strengthen the previously spun rim and the next step of the secondary turret 6 carries the completed cup to the station in the same horizontal plane with the transfer station, as viewed in Fig. 2. At this nal station of the secondary turret, the seat 8 carrying the completed cup is in alinement with a delivery chute '74, only a portion of which is shown in Fig. 3. The chute '74. consists of a number of guide bars '74a which are spaced apart far enough-to freely receive a finished cup when it is delivered open end first into the chute by a blast of air delivered against the cup bottom while in the seat 8. The construction of the secondary turret casting whereby a blast of air is delivered at the bottom of each seat 8 when it registers with the chute 74, is fully described in the aforesaid copending application, Serial No. 265,368, and as-indicated diagrammatically in Fig. 1, the pipe 5'7,which supplies the chain transfer nozzle 56 also supplies the sec-k ondary turret with air under pressure through a branch pipe 57a leading to the center of the secondary turret casting. Therefore, the delivery of a finished cup from the secondary turret 6 to the chute '74 occurs each time a dried cup is transferred from the chain 20 to the main turret 1, the cups arranging themselves in nesting relation in the chute so as to build up a stack( as successive cups are delivered open end rst from the secondary turret.

Referring now to Fig. 5, there is shown a modification of the invention which briefly stated, consists in delivering dried cups from the conveyor chain directly to a delivery chute for stacking in nesting relation, Without performing any operations on the rims of the dried cups. In this modified arrangement, provision is also made for driving the conveyor chain from the cup forming turret so that the cup drying rings have a step-by-step movement synchronized with the turret movement, so that each ring is accurately alined with a turret mandrel at the moment kof transfer from the mandrel to the ring. c

Referring to Fig. 5, the turret 1 is constructed and operated in exactly the same manner as the turret shown in Fig. 1, so that its `mandrels 2 present formed cups successively to the rings 21 of a chain 20, `only a portion of which is shown.

The chain 20 is constructed inexactly the same manner as the chain previously described with reference to Fig. 2, and is driven by means of a sprocket wheel 19a mounted on a shaft 12a extending parallel to the turret shaft. i The shaft 12a is driven from a counter shaft '75 through a chain '76 passing around sprocket wheels ,'7'7 mounted on the shafts 12a and '75 respectively, the wheels '77 being of the same `diameter with the same number of teeth. The shaft '75 also carries a gear '78, the teeth of which are in mesh with gear teeth '79 provided aroundthe periphery of the turret 1, so that vintermittent rotative movement is imparted to the shaft '75 through the step-by-step movement of the turret 1.`

As previously pointed out, the turret 1 at each step turns through an angle determined by the displacement between mandrels 2, and the number of teeth on the gear 78 is such that each step of the turret 1 is adapted to turn the shaft '75 through one-third of a complete revolution. Consequently, the shaft 12a is turned through the same angle upon each step of the turret 1, and since the number of teeth on the driving sprocket 19a is three times the number of chain links between adjacent rings 21, the chain is moved in exact synchronism with the turret. That is to say, each step of the turretl will be accompanied by corresponding movement of the chain so that a ring 21 will come to rest at the guide roll 26a in exact axial alineinent With a mandrel carrying a cup.

The transfer of a cup from a mandrel 2 to a ring 21 positioned at the roll 26a is accomplishedv in exactly the same manner as described withv reference to Figs. 3 and 4, each cup so transferred being carried away from thelturret 1 by the chain 26 in the direction of the arrow in Fig. 5. After a cup carried by a ring 21 has traversed nearly the entire. course of the chain, it finally reaches a position just above the driving sprocket wheel19a in which it comes to rest in alinement with the open-end of a chute 80 similar in construction to the chute '74 .previously referred to.

For purposes of illustration, the chute 80 is shown as having been turned at an angle to the axis of the turret 1, and cups from the conveyor rings 21 are adapted to be delivered openend rst into the chute 80 by means of an air blast delivered through a pipe 81. Admission of Aair under pressure to the pipe 81 is controlled` in timed relation to the intermittent movement of the turret 1 in the same manner as described with reference to the pipe 5'7 in Fig. l, so thatr the successive` delivery of dried cups, open end first, to the chute 80 results in the formation of a stack of cups in nesting relation, as indicated. Since each cup is rigidly held within a ring'while passing around the dryer chain 20, there is no pos.-

sibility of the seams spreading .during the drying present inven ion there is provided an improved apparatus for drying roundV cups in process of manufacture, the apparatus functioning simul taneously with the cup foirning'means, so that completely dried cups are delivered at the sainev rate that the cups are formed., As a result of the functioning of the drying. apparatus, it is possible to deliver completely dried cups for rthe performance of other operations'thereon, such as rim spinning, or to deliver` the dried cups one by one to a suitable receptacle for stacking in nestbination with a rotatable turret providing a plu? rality of angularly spaced cup forming mandrels, and means for imparting a step-by-step turning movement to said turret, of a conveyor carrying a plurality of cup receiving rings spaced apart the same distance as said turret mandrels, means for moving said conveyor to cause axial alinement of adjacent rings with adjacent turret mandrels during a dwell of the turret, and means for simultaneously bringing about the transfer of a cup from a mandrel to a ring and the trans.- fer of another cup from a ring to a mandrel.

2. In appare-.ius of the class described, the combination with a rotatable turret providing a plurality of angularly spaced cup forming mandrels for internally supporting conical cup bodies and means for imparting turningmovement to said turret, of a continuously moving conveyor carrying a plurality of spaced cup receiving rings for externally supporting conical cup bodies and means for transferring a cup, small end iirst, from amandrel to a ring when a ring is in approximate alinement with a mandrel.

3. In apparatus or" the class described, the combination with a rotatable turret providing a plurality oi angularly spaced cup forming mandrels for internally supporting conical cup bodies and means for imparting turning movement to said turret, of a conveyor carrying a plurality or cup receiving rings for externally supporting conical cup bodies spaced apart the same distance as said turret mandrels, means for continuously moving said conveyor at such a rate as to bring a ring into alinement with a mandrel., and means for transferring a cup, small end first, from a mandrel to a ring at the moment of approximate alinement of a ring With-a mandrel. g

4. In apparatus of the class described, the combination with a rotatable turret providing a plurality of mandrels for internally supporting cup bodies having closed ends, and means for Virnparting a step by step turning movement to said turret, of a conveyor carrying a multiplicity of spaced rings greatly in excess of the number of said mandrels, said conveyor being driven in timed relation with said turret, and means for transferring cups one by one, closed end first, from the mandrels of said turret to the individual rings of said conveyor, with the body or each cupV externally supported by a conveyor ring.

5. In apparatus of the class described, the combination with a rotatable turret providing a plurbodies having closed ends, and means for imparting a step by step turning movement to said tur` ret, of a conveyor carrying a multiplicity of spaced rings greatly in excess of che number of said mandrels, said .conveyor being driven in timed relation with said turret, and means cooperating with each mandrel when it is in register with a ring of said conveyor for transferring a cup, closed end rst from the mandrel to a ring, with the cup body externally supported by said ring.

6. In apparatus of the class described, the com-l bination with a rotatable turret providing a plurality of mandrels for internally supporting cup bodies having closed ends, and means for imparting a step by step turning movement to said turret, of a conveyor carrying a multiplicity of spaced rings greatly in excess of the number of said mandrels, said conveyor being driven in timed relation with said turret, and means cooperating with a mandrel when in register with a conveyor ring for delivering a blast or" air against the closed end of the cup on said mandrel for projecting said cup closed end rst to said ring, With the cup body externally supported by said ring.

7. In apparatus of the class described, the combination with a rotai able turret providing ya plurality of mandrels for internally supporting cup bodies having closed ends, and means for imparting a step by step turning movement to said turret, of a conveyor carrying spaced rings driven in timed relation with said turret, with said rings spaced apart the same distance as said turret mandrels to cause axial alinement of adjacent rings with adjacent mandrels during a dwell of the turret, and means for simultaneously bringing about the transfer of a cup closed end rst from a mandrel to a ring, and the transfer of another cup open end first from a ring to a mandrel.

'8. In apparatus of the class described, the combination with means :or forming round cups each having a tapered body with a longitudinal seam secured by adhesive, means for spinning the open rims of said formed cups, and a conveyor providing a multiplicity of spaced rings each having a diameter intermediate the largest and smallest diameters oi a cup body, of means for removing lcups one by one, small end first, from said forming means for reception in said conveyor rings,

and means for driving said conveyor with a slow 

